剩磁
材料科学
磁铁
各向异性
凝聚态物理
矫顽力
纹理(宇宙学)
方向(向量空间)
微晶
变形(气象学)
晶界
磁各向异性
结晶学
磁化
几何学
磁场
复合材料
化学
光学
冶金
微观结构
物理
图像(数学)
量子力学
人工智能
计算机科学
数学
作者
Dongtao Zhang,Yuan Xiu-gan,Ming Yue,Deshi Zhou,Jie Zhu,Xuexu Gao
出处
期刊:CrystEngComm
[The Royal Society of Chemistry]
日期:2016-01-01
卷期号:18 (15): 2632-2641
被引量:17
摘要
We report a magnetically-anisotropic PrCo5 permanent bulk magnet, prepared by a hot deformation method, with crystallographic orientation-dependent magnetic properties. Although the PrCo5 crystals strongly favor the {0001} orientation texture, the crystallographic orientation textures of PrCo5 crystallites differ at various radial locations. From the bulk center to the edge, the c-axis orientation texture decreases from 5.4 MRD to 4.1 MRD, whereas the remanence decreases from 8.93 kGs to 7.58 kGs and the coercivity increases from 4.34 kOe to 6.56 kOe. This paper also reports the alteration of boundary plane orientation textures, resulting from the corresponding energy anisotropy at different locations, and suggests that the development of grain boundaries with lower boundary energies has a significant impact on the magnetic properties with regard to remanence and energy density. The current work therefore proposes an elegant approach to attain desired magnetic properties in PrCo5 magnets by fine-tuning the crystallographic orientation.
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